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High-dimensional one-way quantum processing implemented on d-level cluster states
Reimer, Christian1,2; Sciara, Stefania1,3; Roztocki, Piotr1; Islam, Mehedi1; Cortes, Luis Romero1; Zhang, Yanbing1; Fischer, Bennet1; Loranger, Sebastien4; Kashyap, Raman4,5; Cino, Alfonso3; Chu, Sai T.6; Little, Brent E.7; Moss, David J.8; Caspani, Lucia9; Munro, William J.10,11,12; Azana, Jose1; Kues, Michael1,13; Morandotti, Roberto1,14,15
Source PublicationNATURE PHYSICS
Contribution Rank7

Taking advantage of quantum mechanics for executing computational tasks faster than classical computers(1) or performing measurements with precision exceeding the classical limit(2,3) requires the generation of specific large and complex quantum states. In this context, cluster states(4) are particularly interesting because they can enable the realization of universal quantum computers by means of a 'one-way' scheme(5), where processing is performed through measurements(6). The generation of cluster states based on sub-systems that have more than two dimensions, d-level cluster states, provides increased quantum resources while keeping the number of parties constant(7), and also enables novel algorithms(8). Here, we experimentally realize, characterize and test the noise sensitivity of three-level, four-partite cluster states formed by two photons in the time(9) and frequency(10) domain, confirming genuine multi-partite entanglement with higher noise robustness compared to conventional two-level cluster states(6,11-13). We perform proof-of-concept high-dimensional one-way quantum operations, where the cluster states are transformed into orthogonal, maximally entangled d-level two-partite states by means of projection measurements. Our scalable approach is based on integrated photonic chips(9,10) and optical fibre communication components, thus achieving new and deterministic functionalities.

Indexed BySCI
WOS IDWOS:000457492900016
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Document Type期刊论文
Corresponding AuthorKues, Michael; Morandotti, Roberto
Affiliation1.INRS EMT, Varennes, PQ, Canada
2.Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA
3.Univ Palermo, Dept Energy Informat Engn & Math Models, Palermo, Italy
4.Polytech Montreal, Engn Phys Dept, Montreal, PQ, Canada
5.Polytech Montreal, Elect Engn Dept, Montreal, PQ, Canada
6.City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Peoples R China
7.Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian, Shaanxi, Peoples R China
8.Swinburne Univ Technol, Ctr Micro Photon, Hawthorn, Vic, Australia
9.Univ Strathclyde, Inst Photon, Dept Phys, Glasgow, Lanark, Scotland
10.NTT Corp, NTT Basic Res Labs, Atsugi, Kanagawa, Japan
11.NTT Corp, NTT Res Ctr Theoret Quantum Phys, Atsugi, Kanagawa, Japan
12.Natl Inst Informat, Tokyo, Japan
13.Univ Glasgow, Sch Engn, Glasgow, Lanark, Scotland
14.Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu, Sichuan, Peoples R China
15.ITMO Univ, St Petersburg, Russia
Recommended Citation
GB/T 7714
Reimer, Christian,Sciara, Stefania,Roztocki, Piotr,et al. High-dimensional one-way quantum processing implemented on d-level cluster states[J]. NATURE PHYSICS,2019,15(2):148-+.
APA Reimer, Christian.,Sciara, Stefania.,Roztocki, Piotr.,Islam, Mehedi.,Cortes, Luis Romero.,...&Morandotti, Roberto.(2019).High-dimensional one-way quantum processing implemented on d-level cluster states.NATURE PHYSICS,15(2),148-+.
MLA Reimer, Christian,et al."High-dimensional one-way quantum processing implemented on d-level cluster states".NATURE PHYSICS 15.2(2019):148-+.
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